Burnie West writes:
But to be sure, I attempted to boot with a KNOPPIX CD and found I cannot boot from my CDROM. The boot process goes directly to the FC4. I poked around trying to understand and found (1) /boot/grub/device.map has two entries -- fd0 followed by hda (says it was generated by anaconda) (2) /boot/grub/grub.conf lists FC4, FC4-install, and DOS (which was by the way long ago corrupted and is now useless)(3) BIOS lists three boot devices in order CDROM, FLOPPY, and HDD-0 I have a DVD drive and a CR-RW drive internal.
Looks like your BIOS is capable only of booting from the first CD-ROM device. Your BIOS cannot boot from your second CD-ROM device (your DVD-RW drive).
You will need to re-connect and re-jumper everything so that your DVD-RW is the first CD-ROM device that your BIOS sees.
I tried also including CDROM, using this revised file (cdrom) /dev/hdc (fd0) /dev/fd0 (hda) /dev/hda and tried also with the first entry changed to (hdc) /dev/hdc
Grub has nothing to do with booting from a CD-ROM. Grub's only purpose is to bootstrap your kernel and initrd.
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